A volatile/non-volatile memory device access provisioning system includes a processing system and a controller coupled to a memory device. The controller provides an access key to the memory device and causes memory device communications to be passed to the processing system when the access key is available. The controller simply causes memory device communications to be passed to the processing system when the access key is not available. The memory device masks non-volatile memory subsystem access information in the memory device to prevent the processing system from accessing non-volatile memory subsystem(s) in the memory device, and then determines whether the access key has been received from the controller. The memory device will unmask the non-volatile memory subsystem access information such that the processing system can access non-volatile memory subsystem(s) in response to determining that the access key has been received from the controller.